CELLS Flashcards
Movement of material into cells by formation of vesicle
Endocytosis
Secretion of material from cell by vesicle
Exocytosis
Basic living unit of life
Cell
Study of cells
Cytology
Study of cellular function
Cell Physiology
Specialized structures
Organelles
Surrounds nucleus
Cell Membrane
Arrangement of cells in the cell membrane
Fluid-Mosaic Model
Allows substances to pass in or out of the cells
Selectively permeable
Diffusion of water across a selectively permeable membrane
Osmosis
Lower Concentration
Hypotonic
Higher concentration
Hypertonic
Same concentration
Isotonic
Movement of a solute from an area
Diffusion
Concentration of solute
Concentration Gradient
Moves substances from a higher to lower concentration
Facilitated diffusion
Movement of a substance across a membrane by means a carrier of molecule
Carrier-Mediated Transport
Does not require the cell to expand energy
Passive Membrane Transport
Does recquire the cell to expand energy
Active Membrane Transport
Moves substances from lower to higher concentration; requires atp
Active Transportation